zx6r '07

Should I buy new one and wait or jus seal it up for now do they make performance type cooling systems for a decent $ or na Id like to get more power n smoother idle when hot so what’s options and do i have to take all the fairings off or not ?? ** HELP

Hey everyone so my 07 zx6r is leaking oil durin and after the ride but it doesnt leak as the bike is warmin up after i ride it for about 8 mins itl start leakin oil i changed the head gasket its still leaking. i may or may not have found the issue as to what is causin the leak but any solutions...